Western Gray Squirrel Sciurus griseus Biologists recently began a three-year survey of western gray squirrel habitat, supported by a partnership between WDFW, the U.S. Fish and Wildlife Service, The Nature Conservancy, and Champion International. Squirrels were found in many new localities within the core of the species range in Klickitat County. Biologists are now working with landowners on creative forest plans that will maintain suitable western gray squirrel habitat into the future. Western gray squirrels are a secretive species restricted to a small portion of their former range. Eastern gray squirrels, their smaller, browner relatives, have become common in some areas, especially cities and suburbs, during a recent expansion into Washington.